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23146256 = 2471973149
BaseRepresentation
bin101100001001…
…0111100010000
31121112221200202
41120102330100
521411140011
62144034332
7400511540
oct130227420
947487622
1023146256
111207a141
1279029a8
134a45513
143107320
15207323b
hex1612f10

23146256 has 80 divisors (see below), whose sum is σ = 55056000. Its totient is φ = 9206784.

The previous prime is 23146247. The next prime is 23146273. The reversal of 23146256 is 65264132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155270 + ... + 155418.

It is an arithmetic number, because the mean of its divisors is an integer number (688200).

Almost surely, 223146256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23146256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27528000).

23146256 is an abundant number, since it is smaller than the sum of its proper divisors (31909744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23146256 is a wasteful number, since it uses less digits than its factorization.

23146256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 250 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 23146256 is about 4811.0556014247. The cubic root of 23146256 is about 284.9882256344.

The spelling of 23146256 in words is "twenty-three million, one hundred forty-six thousand, two hundred fifty-six".

Divisors: 1 2 4 7 8 14 16 19 28 38 56 73 76 112 133 146 149 152 266 292 298 304 511 532 584 596 1022 1043 1064 1168 1192 1387 2044 2086 2128 2384 2774 2831 4088 4172 5548 5662 8176 8344 9709 10877 11096 11324 16688 19418 19817 21754 22192 22648 38836 39634 43508 45296 76139 77672 79268 87016 152278 155344 158536 174032 206663 304556 317072 413326 609112 826652 1218224 1446641 1653304 2893282 3306608 5786564 11573128 23146256